Hey everybody, I have been working on the NAND Gate Oscillator circuit from the book "Electronic Circuits for the Evil Genius" and I have hit a brick wall. The circuit calls for a 4011 Quad NAND Gate but due to limited resources, I am using an SN7400 Quad NAND and I believe this is where the problem lies. When the push-button is pressed, the circuit should flash the LED once a second for about 8 seconds. When I apply voltage, my LED comes on immediately without activating the push-button.
I attached the circuit and may try to put the circuit together today with AND/NOT to see if I can get it working. Any help/suggestions would be appreciated.
VALUES:
VDC = 5V
R1 = 100kΩ
R2 = 10MΩ
R3 = 470kΩ
R4 = 2.2M
C1 = 1μF
C2 = 0.1μF
IC1 = 4011 (I am using a 7400)
I attached the circuit and may try to put the circuit together today with AND/NOT to see if I can get it working. Any help/suggestions would be appreciated.
VALUES:
VDC = 5V
R1 = 100kΩ
R2 = 10MΩ
R3 = 470kΩ
R4 = 2.2M
C1 = 1μF
C2 = 0.1μF
IC1 = 4011 (I am using a 7400)
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